FINAL: Glossary generation in rules & reverse linking in algorithms

[jeeyyy]

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Description

• Generation of all used definitions at the bottom of each rule/ drafts
• Generation of reverse backlinks to rules from each definition or algorithm
• all definitions need not be added as hyperlinks anymore, they get auto-generated usage is as below:

The first `title` element contains [non-empty text](#non-empty).

**[text in hyperlink](#name-of-algorithm)**

Note: The hash (#) symbol in hyperlink url is crucial.

• Moved older rules/ drafts to outdated directories - issue Add an "outdated" notice to older pages #112

• Gif here:
  

• Screenshots below:

💔Thank you!

[jeeyyy]

@annethyme
As requested and discussed on Monday, the definitions/ algorithms are now auto-generated in each rule/ draft & vice-versa in the algorithms page the relevant rules in which they are used are enlisted.
Hopefully this should accelerate the work necessary with algorithms.

[kasperisager]

Looks great, kudos! 👍 for explicitly assigning keys to algorithm definitions.

[WilcoFiers]

Please update to use the file name instead of key.

[annethyme]

I like the result. Have no clue about code quality though.